Hydraulic-pressure regulator for cane-mills.



No. 831,786. PATENTED SEPT. 25, 1906. Al GROSSMANN. HYDRAULIC PRESSURE REGULATOR POR CANE MILLS.

APPLICATION FILED JUNE 7,1905.

2 SHEETS-SHEET 1.

7 @minimun nunlnlunu nu Uilmu nu uuxnumll No. 831,786. PATENTED SEPT. 25. 1906.

A. GROSSMANN.

HYDRAULIC PRESSURE REGULATOR EUR CANE MILLS. APPLICATION FILED JUNE 7, 1905.

2 SHEETS-SHEET 2.

A TTOR/VEY 'ra 'sfrafrns Parana* onirica.,

ALBERT GROSSMANN, OF BROOKLYN, NFNV YORK.

No. 831,7s6.

Specification of Letters Patent.

Patented sept. 25, ieoe.

Application iiled June 7, 1905. Serial No. 264,134.

To all whom, it may concern:

Be it known that l, ALBERT GnossMANN, a citizen of the United States, and a resident of the borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Imp ovements in Hydraulic-Pressure Regulators for Cane-Mills, of which the following is a speciiication.

This invention.relates to hydraulic-pressure regulators for cane-mills and the like. lts organization comprises lmeans for automatically regulating the distances between the surfaces of rolls in mills, so that they may easily adjust themselves to various thickness of material that may pass between them and maintain a constant pressure on said material. lt is also characterized by means for controlling and varying the distances that tne rolls can be separated or made to approach each other.

-The invention is exemplified in the accompanying drawings, in which- Figure l represents a front elevation and section of a housing for a mill as on the line of Fig. 2, with the invention connected therewith. Fig. 2 shows a top view of Fig. 1. Fig.' 3 is an enlarged partial section of Fig. l as on the lin'e Fig. 4 represents an enlarged portion of Fig. l.

Housings are represented at A, With side rolls B B2 and the top roll B', supported, respectively, on the side shafts CC2 and the top shaft C', which shafts are vconnected by the gears b b2 b' in the usual manner. The side shafts C and C2 are supported in the housings on the side-roll bearings D and-D2, and the top shaft C is supported in the bearings D'. Caps E maintain the top .shafts C' with their bearings in proper position. Caps F coact with the shaft C, and the caps Gr coact withthe shaft C2. The cap Ghas extending therefrom inclined surfaces g, against which bear wedge-bolts H for adjusting the location of the shaft C2 of the roll B2.

Each of the caps F has formed therewith a cylinder F', in which a plunger I operates. The latter has the shoulder I' and the spherical end bearing-surface l2, to which latter is adjustably fitted the bearing-plate J, by means of the bolt J', the said bolt being somewhat smaller in diameter than the opening through the plate J, so that the latter can a just itself in different positions. A stud J3, with jam-nuts J4 and spring J5, is secured to the plate J as a secondary support to hold it up in place. A cup-leather packing-ring K is held in place on a shoulder of the plunger I, with the follower-plate K', the latter bearing on a shoulder i of the plunger. Piping FZ extends from an opening through the cap F for the introduction of a fluid to exert pressure against the face I3 ofthe lunger I. The said pressure is maintained y an accumulator connected with the piping F2. (Not shown.)

On the forward end of the plunger I there is an adjustable stop consisting of the adjustable sleeve M, which has formed on its outer cylindrical surface the threads m, which are preferably multiple threads that mesh with corresponding threads in the cap F. The forward end of the sleeve M terminates in a spur-gear M',which meshes with a pinion N, fastened on a spindle N'. The spur-gear M' has extending from it a projecting collar m'. The spindle N' `has a bearing fn. in the cap F, the threaded portion n2, which o erates through a stationary nut O, fastene to the said cap F, and a squared end n3. An indexplate P is fastened to the stationary nut O, and a collar Q, with an index thereon, is fastened to the spindle N'. The pitch of the threaded ortion n2 bears the same relation to the lead) of the threads 'm that the pitch diameter of the pinion N bears to the itch diameter of the gear M', and if the t eaded ortion n2 is right-handed the threads M are oft-handed, or vice versa, by which disposivtion the pinion N and spur-gear M' are always maintained in mesh with each other.

To use the invention, the material is fed tothe rolls in the usual manner, and the location of the stroke or action of the plunger I is adjusted by the location of the stop or sleeve M, which controls the movements of the Iplunger in two directions along its axial center line. The location of the sleeve can be delicately adjusted by means of the pointer P and the index on the collar Q by turning the spindle N', with the application of a wrench on the squared end, 11,3 of the saidk spindle. The material passing between the rolls B and B' tends to force the lunger in the direction of the arrow, and is llimited to the distance between the face of the projecting collar m' and the face J2 of the bearingplate J. The pressure on the face of the plunger from the regulator tends to force the plunger in the opposite direction to thelarrow. The stroke of the plunger is 4controlled IOO IIO

I and limited by the end faces of the sleeve M',

the shoulder lof the, plunger strikin against the said sleeve on one side and the ace J 2 of the plate J striking the other side ofthe sleeve. If the sleeve M is brought to bear against the face J 2 of the plate J, the fluid in the piping F2 lcannot act as a cushion for plate J, and in case the hydraulic regulator is not to be used the sleeve M is brought to this position, thereby making a solid backing for the bearing of the shaft. This function of the invention allows the device to be used Without the pressure of the accumulator against the plunger. After the sleeve M has been adjusted and located the fluid-pressure from the accumulator is ermitted to act through the piping F to ear against the lun er I and the rollsare ready for use. It 1s evident that the roll B2 and the roll B could each have a similar hydraulic regulator connected up with them or that' the said regulator could be connected up with any one of said rolls alone.

The invention could be modified by not forming a thread on the spindle N', and the pinion and the spur-gear maybe kept in mesh y making the teeth of one of said Wheels with .a much 'longer face than the other.

Having described my invention, I claim- 1. In a h draulic pressure-regulator for rolls the combination of a cylinder, a plungertherein, means to bring a fluidressure against the face of the plunger, a rol located to have pressure brought on nit by ,the said plunger, and means to vary the location of the stroke of the plunger. 2. In a h draulic-pressure regulator for rolls the com ination of a cylinder, a plunger therein, means to brin a fluid-pressure against the face of the p unger, a roll actuated bythe pressure against the face ot'the plunger, an adjustable stop for the plunger, means to adjust the location of said stop to control the movements of the plunger.

3. In a h draulic-pressure regulator 4`for rolls the com ination of a cylinder, a plunger therein, means to brin a Huid-.pressure against the face of the p unger, a roll actuated by the pressure against the face of the plunger, an adjustable sleeve around the lunger, means on the plunger arran ed to ear against and be stopped by the en faces of the said sleeve. I

4. In a hydraulic-pressure regulator for rolls the com ination of a cylinder, a plunger therein, f means to bring a Huid-pressure against the face of the plunger, a roll actuated by the pressure against the face of the plunger,I a sleeve on the roll, and a stop for the plunger arranged to control its movements in two directions.

5. In l'a h draulic-pressure regulator for rolls the com ination o a cylinder, a plunger therein, means to bring pressure against the face o-the plunger, a roll actuated by the a spindle adjacent to the `saines pressure against the face of the plunger, a sleeve on the plunger, means on the plunger arranged to bear against the end t'acesof the sleeve, a spur-gear extending from the sleeve, a spindle adjacent to the plunger, means to turn the spindle, and a pinion on the spindle meshing with the' gear on the said sleeve.

6. In a hydraulic-pressure regulator for rolls the combination of a cylinder, a plunger therein, means to bring pressure against the face of the plunger, a roll actuated by the pressure against the face of the plunger, a

sleeve on the plunger, means on the plunger arrangedfto bear against the end faces ofthe sleeve, a spur-gear extending from the sleeve, a spindle adj acentto the plunger, a threaded portion on the spindle, a stationary nut meshing with the said threaded portion, means to turn the spindle, and a pinion on the spindle meshing With the gear on the sleeve.

7. In a hydraulicpressure regulator for rolls the combination of va cylinder, a plunger 'A therein, means to bring ressure against the face of the plunger, a rol a shaft for the roll, a side bearing su porting vthe shaft and located to be acted upon by theplunger, a sleeve around the cylindrical surface of the plunger, a shoulder on the plunger arranged to bear against one side of .the said sleeve, an

`adjustable hearing-plate connected with the plunger to bear against the other side ofthe sleeve, a spur-gearextending from the sleeve, plunger, a pinion on the spindle meshing wit 1 said spur-gear, a threaded portion on the s indle, a stationary vnut meshing With the sai threaded portion,

means to turn the spindle, an index carried on the spindle, and a stationary pointer arranged .to coact with the index, a thread on the sleeve arranged to mesh with a stationary thread.

lOO Y 8. In rolls the combination of a housing,

rolls in the housing, a cap for each roll, a cylinder formed in one of said caps, a plunger in said cylinder, a bearing-plate adjustably connected with the plunger, an adjustable sleeve around the plunger, threads on outer surface of the sleeve meshing with corres onding threads in the cap containing the said cylinder, a spur-gear extending from the sleeve, a spindle supported'at one end'in a bearing of t e cap containing the plunger, a stationary nut secured to the latter cap, a threaded portion of the spindle fittingsaid nut, a pointer extending from said nut, an index on the spindle arranged to coact with the pointer, al

9. In combinatlon with rolls, of a hydraulicpressure regulator to control the location of one of said rolls, a plunger in said regulator to j bring pressure on said rolls, means to control and adjust the movements of said plunger,

IIS

Wedge-bolts to'adjust the location of another of the rolls, and means to bring a uid-pres sureagainst the face of the plunger.

10. In a hydraulic-pressure regulator for rolls the combination of a cap7 a cylinder therein, a plunger in the cylinder, means to bring pressure against the face f the plunger, a roll, a shaft for the roll, a side bearing supporting the shaft and located to be acted upon b the bearing-plate, a sleeve around the cy indrical surface of the plunger, a shoulder on the lunger arranged to bear against the said s eeve, a bearing-plate adjustably connected with the plunger and arranged to bear against said sleeve, a spurported in the cap, a pinion on t eA meshing with the spur-gear, a left-handed `thread on the s indle, a stationary nut meshing With saidfrf't ead, a right-handed thread on the sleeve meshing with a thread in the ca IShgned at the borough lof Brooklyn, in the county of Kings and State of New York, this 2d day of June, A'. D. 1905.

ALBERT GROSSMANN. 

